Patent US3186733A successfully refreshed from Google Patents.
US3186733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trailer steering control device
Assignee: Individual
•
Filing: 1963-04-10
•
Granted: 1965-06-01
•
Expires: 1983-04-10
Abstract
No abstract record available.
Inventors
- 👤 William L Langehennig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:01
CPC Classifications
B; B62; B62D; B62D13/00; B62D13/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
IN A STEERING CONTROL FOR TRAILERS HAVING MULTIPLE PAIRS OF WHEELS, A FRAMEWORK, A ROTATING AXLE ON SAID FRAMEWORK, FRONT WHEELS PIVOTALLY AND VERTICALLY MOUNTED ON SAID AXLE, KING PINS SUPPORTING SAID FRONT WHEELS, A RECIPROCATING SHAFT CONNECTED AT ONE END TO A TOWING VEHICLE AND AT THE OTHER END OF SAID ROTATING AXLE, SAID SHAFT MAINTAINING SAID AXLE IN ONE POSITION FOR MAINTAINING SAID KING PINS FOR A FORWARDLY PROJECTING INCLINATION FOR THE FORWARD MOVEMENT OF SAID TAILER AND MOVING SAID AXLE TO ANOTHER POSITION FOR MAINTAINING SAID KING PINS IN A REARWARDLY PROJECTING INCLINATION FOR THE REARWARD MOVEMENT OF SAID TRAILER.
Claim 2
Dependent Claim
103 words
IN A STEERING CONTROL FOR TRAILERS HAVING MULTIPLE PAIRS OF WHEELS, A FRAMEWORK, A ROTATING AXLE ON SAID FRAMEWORK, FRONT WHEELS PIVOTALLY AND VERTICALLY MOUNTED ON SAID AXLE, KING PINS SUPPORTING SAID FRONT WHEELS, A RECIPROCATING SHAFT CONNECTED AT ONE END TO A TOWING VEHICLE AND AT THE OTHER END OF SAID ROTATING AXLE, SAID SHAFT MAINTAINING SAID AXLE IN ONE POSITION FOR MAINTAINING SAID KING PINS FOR A FORWARDLY PROJECTING INCLINATION FOR THE FORWARD MOVEMENT OF SAID TAILER AND MOVING SAID AXLE TO ANOTHER POSITION FOR MAINTAINING SAID KING PINS IN A REARWARDLY PROJECTING INCLINATION FOR THE REARWARD MOVEMENT OF SAID TRAILER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-31 | 1968-11-30 | 1969-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-31 | 1972-11-30 | 1973-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-31 | 1976-11-30 | 1977-06-01 | $7700.00 | Window Closed / Lapsed |